:root {
  --bg: #0a0d14; --panel: #10141f; --panel2: #161c2c; --line: #232b3f;
  --text: #e8ebf2; --dim: #8b93a7; --accent: #5b8cff; --green: #3ddc84;
  --amber: #ffb454; --red: #ff6b6b; --user: #1d2a4a;
}
* { box-sizing: border-box; margin: 0; }
html, body, #app { height: 100%; }
body { background: var(--bg); color: var(--text); font: 15px/1.55 "Segoe UI", system-ui, sans-serif; }
#app { display: flex; }

/* ---------------------------------------------------------- sidebar ---- */
#sidebar { width: 300px; min-width: 300px; background: var(--panel); border-right: 1px solid var(--line);
  display: flex; flex-direction: column; padding: 20px 14px; gap: 10px; overflow-y: auto; }
#brand h1 { font-size: 17px; letter-spacing: 1px; }
#brand h1 span { color: var(--accent); }
#brand p { color: var(--dim); font-size: 12.5px; margin-top: 6px; }
.section-label { color: var(--dim); font-size: 11px; text-transform: uppercase; letter-spacing: 1.5px;
  margin-top: 12px; }
.agent-btn { display: flex; gap: 10px; align-items: flex-start; width: 100%; text-align: left;
  background: transparent; border: 1px solid transparent; border-radius: 10px; padding: 9px 10px;
  color: var(--text); cursor: pointer; font: inherit; }
.agent-btn:hover { background: var(--panel2); }
.agent-btn.active { background: var(--panel2); border-color: var(--accent); }
.agent-btn .lvl { background: var(--line); color: var(--dim); border-radius: 6px; min-width: 26px;
  text-align: center; font-size: 11px; padding: 3px 0; margin-top: 2px; }
.agent-btn.active .lvl { background: var(--accent); color: #fff; }
.agent-btn .nm { font-size: 13.5px; font-weight: 600; }
.agent-btn .ds { font-size: 11.5px; color: var(--dim); }
footer { margin-top: auto; padding-top: 14px; display: flex; flex-direction: column; gap: 4px;
  font-size: 11.5px; color: var(--dim); }
footer a { color: var(--accent); text-decoration: none; }

/* ------------------------------------------------------------- chat ---- */
#chat-pane { flex: 1; display: flex; flex-direction: column; min-width: 0; }
#chat-header { display: flex; justify-content: space-between; align-items: center;
  padding: 14px 22px; border-bottom: 1px solid var(--line); background: var(--panel); }
#current-name { font-weight: 700; font-size: 15.5px; }
#current-desc { color: var(--dim); font-size: 12.5px; }
#voice-state { font-size: 12.5px; color: var(--dim); }
#voice-state.live { color: var(--green); }

#log { flex: 1; overflow-y: auto; padding: 26px 8%; display: flex; flex-direction: column; gap: 14px; }
.divider { text-align: center; color: var(--dim); font-size: 11.5px; letter-spacing: 1px;
  text-transform: uppercase; margin: 6px 0; }
.bubble { max-width: 78%; border-radius: 14px; padding: 12px 16px; }
.bubble .who { font-size: 10.5px; text-transform: uppercase; letter-spacing: 1.2px;
  color: var(--dim); margin-bottom: 5px; }
.bubble.user { align-self: flex-end; background: var(--user); border: 1px solid #2b3c66; }
.bubble.agent { align-self: flex-start; background: var(--panel2); border: 1px solid var(--line); }
.bubble.agent .who { color: var(--accent); }
.bubble.error { border-color: var(--red); }
.bubble.error .who { color: var(--red); }
.bubble .md p, .bubble .md ul, .bubble .md ol, .bubble .md pre, .bubble .md table { margin: 0 0 8px; }
.bubble .md :last-child { margin-bottom: 0; }
.bubble .md code { background: #0c101a; border: 1px solid var(--line); border-radius: 5px;
  padding: 1px 5px; font-size: 13px; }
.bubble .md pre { background: #0c101a; border: 1px solid var(--line); border-radius: 8px;
  padding: 10px 12px; overflow-x: auto; }
.bubble .md pre code { background: none; border: 0; padding: 0; }
.bubble .md table { border-collapse: collapse; font-size: 13.5px; }
.bubble .md th, .bubble .md td { border: 1px solid var(--line); padding: 4px 9px; }

.chips { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 8px; }
.chip { font-size: 11.5px; border-radius: 999px; padding: 3px 10px; border: 1px solid var(--line);
  color: var(--dim); background: #0c101a; }
.chip.tool { color: var(--amber); border-color: #4a3a1a; }
.chip.node { color: var(--accent); border-color: #24355f; }
.working { color: var(--dim); font-size: 13px; }
.working::after { content: "…"; animation: pulse 1.2s infinite; }
@keyframes pulse { 50% { opacity: .3; } }

.approval { border: 1px solid var(--amber); border-radius: 10px; padding: 12px; margin-top: 8px; }
.approval h4 { color: var(--amber); font-size: 12px; text-transform: uppercase; letter-spacing: 1px;
  margin-bottom: 8px; }
.approval .btns { display: flex; gap: 8px; margin-top: 10px; }
.approval button { border: 0; border-radius: 8px; padding: 7px 14px; font: inherit; font-size: 13px;
  cursor: pointer; }
.approval .ok { background: var(--green); color: #05230f; }
.approval .rev { background: var(--amber); color: #2b1c00; }
.approval .no { background: var(--red); color: #2b0505; }
.approval textarea { width: 100%; margin-top: 8px; background: #0c101a; color: var(--text);
  border: 1px solid var(--line); border-radius: 8px; padding: 8px; font: inherit; font-size: 13px;
  display: none; }

/* --------------------------------------------------------- composer ---- */
#composer { display: flex; gap: 10px; padding: 14px 8% 20px; border-top: 1px solid var(--line);
  background: var(--panel); }
#input { flex: 1; background: var(--panel2); border: 1px solid var(--line); border-radius: 10px;
  color: var(--text); padding: 11px 14px; font: inherit; }
#input:focus { outline: none; border-color: var(--accent); }
#send, #mic { border: 0; border-radius: 10px; padding: 0 18px; font: inherit; cursor: pointer; }
#send { background: var(--accent); color: #fff; }
#send:disabled { background: var(--line); color: var(--dim); }
#mic { background: var(--panel2); border: 1px solid var(--line); font-size: 17px; }
#mic.live { background: var(--green); border-color: var(--green); animation: micpulse 1.4s infinite; }
@keyframes micpulse { 50% { box-shadow: 0 0 0 7px rgba(61, 220, 132, .15); } }

@media (max-width: 760px) {
  #sidebar { display: none; }
  #log, #composer { padding-left: 4%; padding-right: 4%; }
  .bubble { max-width: 92%; }
}